Friedkicii august meischner



No. www.l Pauntau 1an: 17, |899.

A. nassaui-1.3.' FEED nEvcEl'ron SMALL wpmc Placas;

(Applictun mod July 93, 1&8.)

(nu und n gw NiTED STATES FRIEDRICH AUGUST MEISCHNER, OF CHEMNITZ, GERMANY.

FEED DEVICE FOR SMALL WORK-PIECES.

v SPECIFICATION forming part of Letters Patent No. 617,990, dated January 17, 1899.

Application tiled July 23, 1898.

To all whom z' may con/cern:

` Be it known that I, FRIEDRICH AUGUST MEISCHNER, a subject of the King of Saxon y, residing at 120 Zsehopauerstrasse, Chemnitz, in the Kingdom of Saxony, German Empire, have invented a new and Improved Feeding Device for Small Work-Pieces, of which the following is an exact specification.

This invention relates to a feeding device for small work-pieces-such, for instance, as nuts.

The objects of my invention are, first, to'eed such pieces singly to a machine or apparatus in which the same are further worked-sueh, for instance, in which nuts are provided with the screw-threads-and, second, to effect this feeding by aid of very simple but reliablyacting means. The latter consist of certain combinations and arrangements of parts, as are described hereinafter, and in order 'to make my invention more clear I refer to the accompanying drawings, in which similar letters denote similar parts throughout the different views, and in whieh- Figure 1 is a vertical section through the feeding device in question. Fig. 2 is a horizontal section in line 7 8 of Fig. l. Fig. 3 is a vertical section through a slightly-modified form of construction. Fig. 4 is a section through a slightly-modified form of construction of the disk o of Figs. l and 3. Fig. 5 is a plan of said disk; and Fig. G is a plan, partly in section, of the checking device d d', which will duly be referred to iu the further course of this specifica-tion.

My improved feeding device for small workpieces consists of a receptacle or hopper A, the lower part of which contains a drum I3, fixed to a shaft l'. The latter is provided with a worm-wheel f, which gears with a worm f', secured to or forming part of a horizontal sl1al't-f`-. This shaft is furnished with a conepulley f", and the drum l may thus be 10- tated by this pulley.

The drum ll is not exactly cylindrical, but is either of prismatic shape or provided with ribs or grooves, which, if desired, may have an inclined position or may form a kind Yof screw-thread. Between the drum ll and the ncighboringor opposite part of the receptacle A remains` an annular space, the bottom of.

serai No. 686,752. (No modem i which is formed by a disk a, which either is made integrally with the drum B or is secured as a separate piece to the shaft B. The disk o is provided with a recess or an aperture a', which is elongated in a downward direction by means ot' an extension a2, being either made integrally with the disk a or secured to the same as a separate piece, as shown. The extension or channel a2 is thus made to revolve around the shaft B'; but while thus revolving the lower end of the channel c2 is closed by a stationary Wall b, extending, of course, along the circular path of the end of the channel a2 or forminga cylinder, respectively. I prefer to make this cylinder integral with the receptacle A, so that the whole forms a casing with a hollow foot, the latter being constituted by the cylindrical wall b. Thejworm-wheelf is located -in this foot, as is also the respective part of the worm j".

The cylinder or wall b is provided with an apertureb', located just in the height of the lower end of the channel a2, so that the latter at each revolution communicates once with the aperture b. The latter is elongated in a downward direction by an extension or channel c, the degree of inclination of which preferably corresponds to that of the channel a2.

The small work-pieces-for ins tance, nutswhich are to be fed singly are thrown into the receptacle A, and they iill not only the space above the drum B, but also' the annular space between this drum and the opposite or neighboring part of the receptacle A the more as the drum B is rotated and tends to act upon or to move the work-pieces by means of its ribs or equivalent projections. Owing to the existence of these ribs or other projections and to the action of the same upon the pieces in question, the latter are introduced not only into that annular space, but also into the aperture a and the channel a2, the width of the latter being such that the Work-pieces form a row. They are prevented from leaving the channel e2 by the circular wall b,which allows of the work-pieces or, more precisely, the lowermost of them leaving the channel 0.2 only in that moment in which said channel communicates with the aperture Z1. The

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lowcrniost work-piece may then glide down upon the channel cy, but the other pieces located in the channel a2 and in the aperture a are prevented from also passingaway through the aperture b' by means of the following contrivance: This contrivance is formed by a slide d, Figs. l and 6, which, is located about :rcctangularly to the channel a2 and extends into the latter. The slide d is maintained in its proper working position by means ofva spring d', which allows of the slide giving way when the respective edge of the channel a2 pushes against theislidezd,thelpiecesof contact of the partslcl anda2 being of course so shaped that the revolution of the channel a2 is not impeded bythe slide L While this latteristhus raised,the respective `Work-piece,

` `fwhicli haslbeen held bythe slide up to that i zo time", is freed and allowed to glide down, whereas in thenext moment the next Work- ,1""p`ieceiisl checked by the returning slide. l

n"flhere may beofconrse two `ormore aperturesll'and a corresponding number'of checkl "iiifgdevicesd d `in one apparatus; but there `disk a, lI "prefer to give therespective part of may alsol be two orfinore apertures a and a corresponding number 'of "channelsc, so that the work-pieces may be `fed` not only to one t machine, `but to several.` 1In order to facilitatethe movementof the lifvrk`-pieces "upon" thelupp'er surface of the the latteran inclined `position", as shown in Figs. 4 and 5,`the direction of the inclination being such that the lowest part of the latter is located immediately at the aperture or re- In the modified form of construction represented in Fig.y 3 the shaft B extends up- 1 ward through the receptacle A, and the shaft 4o `fzis located in the upper partlof the receptacle and provided with a bevel-wheel g', which gears with a bevel-wheel g, keyed to the shaft B. That part of the shaft B which is located immediately above the ribbed drum `or body B may alsobe used for Imoving the work-pieces contained in the receptacle A, and for this purpose the respective part of the shaft B receives shown at B2.

a prismatic shape, as

` Having now described my invention, what I desire to secure by Letters Patent of the l. In a feeding device for small work-pieces, the combination with a receptacle, a rotary body B located in the lower part of the same, an aperture 'located at the side of said body and a channel `forming an extension of said aperture'and adapted to rotate together with said body; a stationary wall extending along thecircular path of `the end of the channel, an aperture located in said wall and adapted to communicate with said end, and means for `rotatingsaiddrum,forthe purpose as deceive some of the Iworld-pieces to be fed,a rotary bottom forlsaid space; an aperture in said bottoinadapted to let said pieces singly pass, a channelforming an extension of the bottom and of? said aperture, a circular wall extending alongthe circular path of the end of said channel,l an aperture located in said wall and adapted to communicate with said end, and means for rotating said drum and bottom,`for the purpose as described.

3. In a feeding device for small work-pieces, the combination with" a receptacle,A `a rotary body B located in the lowerlpart of the same, an aperture locatedatthe side of said body and a channel forming an extension of said aperture and adapted to rotate together with said body; a slide located in said wall in such a position as to `be able to `extend into said channel and to check the last' but one of the work-pieces located inthe channel; a stationary wall extending along the circular path of the end of the channel, an aperture located in said wall and adapted to communicate with said en(1 and means for rotating said drum, for the purpose as described.

In witness whereof Ihave hereunto set my hand in presence of two witnesses.

FRIEDRICH -AUGUST MEISCHNER.

lVitnesses:

EUGEN NUBEL, A. REUCHER. 

